sourcefabric/Superdesk — pull request #581 by patriciagarcia (2014-01-09 16:05:14+00:00)
Title: LB-1337 No twitter icon on embed if adblock is turned on

It seems that the request for the twitter image is blocked by Adblock (+ social buttons filter), when the name of the file is twitter-16px. The problem can be solved by changing the name of the file to something else like tw-16px.